Filter



' (No Model.) l v JDUREL..

I y FILTER. No. 292.631. lPatented Jan. 2.9.1884..y

AIII

WTNBSSEs UNITED l STATES PATENT OFFICE.

JUsTIN D'UEEL, 'or NEW ORLEANS,4` LoUIsIANA.

FILTER.

SPECIFIQATION forming part of Lettersrateint No. 292,631', dated January 29, 1884.

Application filed July 25, 1883. (No model.)

.To all whom, it may concern:

Be it known that I, J UsTIN DUREE, a -citi-l zen of the United States, residing at New Orleans, in the parishv of Orleans and State of Louisiana, have invented a new and useful Improvement in Filters, of which the following` is a specification.

My invention relates to that class of filters used for filtering cane juice and sirup in the manufacture of sugar onplantations, the fluid to be filtered being forced through the filter by a force-pump or equivalent pressure; and

the object of my invention Ais to provide means whereby the sediment and coarse matter may settle away from rather than into the lter proper, means for readily cleaningI the filter, and means whereby the filter is made effective and economical.

To this end my invention consists in the construction and combination of parts, hereinafter described and claimed, reference being had to the accompanying drawings, in which- Figure 1 is a side elevation, Fig. 2 is a longitudinal vertical section, and Fig. 3 is a plan view, of my invention.

A represents a tank of any suitable pro-4 portions-as, for instance, two feet wide, four.

feet long, and' six inches deep-:and of any suitable material, either wood or metal.

B,o is a pipe connecting with a force-pump, which'supplies the liquid to be ltered under sufficient pressure to force the liquid, however thick and heavy it may be with foreign suitable material-such as ,fine cotton below and heavy duck above, or felt or wire-cloth. Each different iiuid to be ltered may require some some special filter to produce the best result. In, each case the filtering-cloths eX` tend across the edges of the tankand are These cloths may be of any firmly held by the anges and bolts. At the Y same time the cloths serve as a packing for the joint between the two tanks to prevent the escape of iiuid. The bottom L of the upper tank, F, is perforated with holes, usually from one-sixteenth to one-eighth of an inch in diameter, the size being dependent on .the finenessof the filtering-cloth and the material to be filtered. The upper tank, F, may

be partly lled with gravel, coal, moss, Ste., if required, to assist in perfecting the filtration.

The pipe B ofthe force-pump enters the lower tank immediately below the filteringcloths, so that the current of. entering fluid may have a constant tendency to wash clogging material from the lower cloth, and so that water may' be let in against the cloth to clean it.

M is a faucet, from which liquid may be drawn in preparing the lower tank from cleaning; and N is a faucet to discharge the muddy refuse which settles to the bottom.

-O is the regular overflow or outlet gutter for the clariliedliquid to escape from. P is a lsimilar gutter that may be used in case there is no coal or other filtering material used in this outlet l? will be closed. Q Q are handles by which the upper tank may-be removed. By this means of forcing the fluid upward through the filter the sediment and coarse matter is left below to fall by its own gravitation out of the way ofthe filter.

y The perforated bottom to the upper tank may be dispensed with when the fluid requires but little pressure to force it through the cloth.

What I claim as my invention, and wish to secure by Letters Patent, is-

The combination, with the tank A, having flanges G, and provided with pins K, and the tank F, having similarjianges G and a perforated bottom, of the cloths C and D,provided with eyelets J to engage pins K, and the bolts H, as and forthe purpose specified.

"JUSTIN DUREL. 

